Canopy for electric fixtures



0d. 14 1924,l f v .Y .1;5I1`,914

R. H. SAVORY cANoPfg. FOR ELECTRIC FIXTURES Filed Jari. 24. -1921 i INVENTOR' RQBERT HSAIORY Patented Oct. 14, 1924.

UNITED STATESl ROBERT H. SAVOBY, OF WORCESTER, MASSACHUSETTS.

CANOPY FOR ELECTRIC FIXTURES.

Application led January 24, 1921. Serial No. 439,591.

To all whom it kmay concern.'

Be it known that l, ROBERT H. SAVORY, a citizen of the United States, residing at Vorcester, in the county of Worcester and Commonwealth of Massachusetts, have invented a certain new and useful Improvement in a Canopy for Electric Fixtures, of which the following, together with the accompanying drawings, is a specification.-

My invention relates to improvements in canopies for electric fixtures which are ordinarily mounted on walls and ceilings to conceal the wiring connections for the fixtures.

The object of my invention is to provide a simple form of canopy, and a support therefor, from which the canopy may be readily and quickly removed so that the wiring concealed by the canopy may be fullyexposed to view for the purposes of inspection and repair.

In the accompanying drawings,

Figure 1 is a view partially in section and partially in side elevation of a canopy embodying my invention, mounted on its suport.

P Figure 2 is a plan view of the base of the canopy shown in Fig. 1.

Figure 3 is a plan view of the support for the canopy shown in Fig. 1.

' Figure 4 is an end view of the support shown in Fig. 3.

Similar reference characters refer to similar parts in the different views.

Referring to the drawings, the canopy 1 may be of any usual form and generally comprises a hollow dome shaped portion 2 provided at its base with a peripheral iiange 3. The flange 3 is rolled over upon itself, as indicated at 4, and as best shown in Fig. 2 the rolled over portion 4 is cut away at diametrically opposite points to provide spaces 5. The rolled over portion 4 is also provided with radial serrations or teeth 6 which may be conveniently formed by pressing at the same time the flange 3 is rolled over.

The support 7 for the canopy comprises a U-shaped portion 8 which is secured to the wall or ceiling by means of screws or bolts 9, the U-shaped portion 8 being adapted to bridge the junction box 10 or other device which projects from the wall or ceiling and contains the connections for the wires 11 which lead to the fixture. The feet 12 of the U-shaped portion 8 are bent away from the wall or ceiling, as shown at 13, and the bent portions 13 are provided withserrations or teeth 14, as best shown in Figs.' 3 and 4. The entire support 7 is adapted to be formed from strap material by bending and pressing, the serrations or teeth 14 being formed at the same time as the 'portions 13 are bent f outwardly.

When it is desired to mount the canopy 1 11 on the wall or ceiling, the portions 13 of the support 7 are caused to register with the y spaces 5, and the canopy 1 is'then turned to bring the teeth 6 into engagement with the teeth 14. As the canopy 1 is turned with respect to the support 7 the rolled over portion 4 enters the spaces between the portions 13 and the wall or ceiling. It is apparent that when a number of teeth 14 on the support 7 are engaged by teeth 6 on the canopy, the canopy will be locked against further turning movement and will remain in position on the wall or ceiling.

When it is desired to remove the canopy 1 from its supporting member, it is only necessary to turn the canopy 1 enough to bring the portions 13 into registration with the spaces 5, whereupon the canopy may be withdrawn from the wall or ceiling to eX- pose the junction box 10 and the wires 11,.

The portion 8 is provided with an opening 15 for receiving the wires 11 leading to the fixture. The wires 11 may be inclosed within a pipe 16 threaded into an opening 17 at the top of the canopy 1, with a locking nut 18 for securing the pipe 16 in position on the canopy. The pipe 16, when used, eX- tends through the opening 17 andthe electric fixture is supported by the pipe 16, although the fixture may be mounted directly on a hub 19 of the canopy. The fixture is thus adapted to be removed from the wall or ceiling with the canopy; slack, shown at 20, being provided in the wires 11 to permit the canopy to be moved far enough away for inspection of the connections.

From the foregoing itis apparent that my improved canopy and support are particularly adapted for use wherever it is necessary to have concealed wiring connections arranged for ready inspections. All that the inspector has to do is to give the canopy a turn and move it way from its support, whereupon the wiring concealed therein is instantly exposed to view. The canopy may then be as quickly returned to its original position, without any time having been lost by the inspector in removing and replacing screws or other fastening devices, Which are often employed in connection with canopies. Furthermore, my improved canopy When once locked in position is proof against accidental displacement owing to the positive locking secured by teeth on both the canopy and its support.

The parts of my improved canopy are adapted to be easily and cheaply manufactured by the practice of ordinary operations in metal pressing and bending.

While I have shown my invention in its simplest and preferred form, it is not so limited, but is susceptible of various modications Within the scope of they appended claims.

I claim,

1. In a device of the class described, the combination With a U-shaped support secured to a Wall or ceiling and having the portions of Which are cut away to receive the4 ends of the feet of said support, and to alloW the base of said canopy to enter into the spacebetween the Wall or ceiling and ends of said support.

2. In a device ofl the class described, the combination With a U-shaped support secured to a Wall or .ceiling with its feet ingengagement With the ceiling and having, its end portions bent away therefrom, and provided With serrations, of a canopy havingfa serrated turned-over base, portions of which are cut away to receive the ends ot' the feet of said. support andto permit the seri-ations on said supportiandsaidvbase to be placed in locking engagement.

ROBERT H. SAL-VORY 

